Car-ventilator.



J. A. DENNIS.

GAR VENTILATOB. I

APPLICATION FILED MAR.6,1914.

hl fififigm Patented Jan.5, 1915.

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Application filed March 5, 1914. Serial No. 8227M.

To all whom it may concern:

Be it known that ll, JOHN A. DENNIS, a citizen of the United States, residing at Birmingham, in the county of Jeiferson and State of Alabama, have invented certain new and useful Improvements in Car- Ventilators; 'and I do hereby declare the followingto be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in car ventilators, and has for its principal object to provide a device which is adaptedto be attached to a railway car directly above the windows which will admit fresh air to the interior of the car without permitting cinders toenter the same.

Another object of the invention is to provide a ventilator by means of which the admission of air to the car may be controlled in a simple and effective manner without causing inconvenience to the user.

A further object of the invention is to provide a ventilatorof the above type which may be easily and quickly constructed of sheet metal and by means of which the desired results may be obtained.

With the above and other objects in view, the invention consists in the novel combination and arrangement of parts which will be fully set forth in the following specification and accompanying drawings, in which,

Figure 1 is a side view in elevation of the outside of a window showing this improved ventilator attached thereto. Fig. 2 is an enlarged longitudinal sectional view of the same, Fig. 3 is a detail perspective view of a fragment of the device showing a portion broken away to more clearly illustrate the interior working thereof, and Fig. 4 is a detail perspective view of a fragment of the screen wire which serves toassist in preventing cinders from entering the interior of the car when the device isin use.

Referringmow to the drawings by characters of reference, the numeral 1 designates as an entirety the side of a railroad car having the usual openings formed therein in which the slidable window 2 is secured. The usual fixed window 3 is'pr'ovided, but the glass ispreferably removed as illustrated in Fig. 2. Secured to, the frame 3 of the fixed window is provided the Specification of Letters Patent.

Fatented Jan. a, min.

hood ventilator designated generally by the numeral 4. This ventilator comprises the hood 5 which is secured to the window frame as at 6. Formed in the hood at spaced intervals are provided the depressions 7 which are adapted to cotiperate with the latch 8 carried by the door 9 which is hinged to the .window frame as at 10. This door preferably extends to within a short distance of each end of the hood 7 and is arranged to completely cover the opening in the window frame 3. Near each end of the hood 5 is provided the plate 11 having formed integral therewith the angular extension 12 which forms a vertical partition wall within the casing. This extension 12 j is beveled at one end as illustrated at 3 to allow for movement of the door 9 above referred to. At each end of the door 9 and projecting outwardly therefrom isv provided a suitable partition wall 14: which is spaced A suitable longitudinal partition wall 15 is secured in any suitable manner to the hood 5 and is arranged to cooperate with the-angle portion 13 of the wall 12 to form a stop for the door and hold the same in the position illustrated in Fig. 3. The depressions 7 are arranged to cooperate with the latch 8 tohold the door in its several adjusted p ositions, and it will be apparent that when the door is opened the latch will engage in the walls of the depressions 7 and maintain the door in the desired position. In order to further assist in clarifying the air entering the car, the screen 16 is provided and is arranged to fit in the opening formed between the portions 11 and the hood 5 as shown in Fig. 2. j I

It is to be understood that while the device herein described is adapted for use where the glass is removed from the window, that the same may be used equally as well where only a portion of the glass 1s removed, and it will be seen that the device is adapted for all uses wherein such ventilators are. required. 1 4

' It will be clearly seen from the foregoing that in use the latch 8 is pulled downwardly and the door forced 0 on to the desiredpo sition and the latch 1s. permitted to enter to the window frame,

one of the notches 7 and'thus it will be seen that the door will be held against movement. Should it be desired to close-the ventilator the only operation necessary is to release the latch and the hinge 10 will automatically force the door closed and in the position illustrated in Fig. 2.- It will also be evident that the tortuous passage formed by the walls 12 and 14 will serve to prevent cinders or dust from entering the car, thus insuring the admission of pure air to the car.

While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that such changes may be made in the combination andarrangement of parts as will fall within the spirit and scope of the invention as claimed.

Having thus claim:

1. The combination with a car window having theglass removed, of a hood secured a door hinged to the window frame on its lower side and swinging within the hood, bottom walls secured to the hood 'near each end, angular extensions on the bottom walls and forming a vertical'wall, vertical walls carried by the door at its end,.said vertical walls being spaced from the end walls of the hood, and the walls within the hood and adapted to cooperate with said Walls to forma tortuous passage whereby air passing through the ventilator will deposit any foreign substance within the ventilator, and a screen in the open part of the bottom of the-ventilator to assist in purifying the air.

described my invention, I

2. In a device of the character described the combination with a car having a fixed transom, of a ventilator secured to the fixed transom, the glass in said transom being removed, a door hingedly secured to the transom, said door being adapted to automatically close, a hood, means carried by the door and cooperating with the hood to hold the door open, bottoms formed in the hood near each, angular extensions on the bottom and projecting upwardly, and walls carried by the door near each end, said walls being spaced between the angular extension on the bottom and the end walls of the hood thereby forming a tortuous passage,and a spring hinge on each end of the door to normally hold said door closed.

3. In a device of the character described the combination with a car having a plusaid window openings, of a hoodover said transom, doors hingedly secured to each of the transoms, partition walls carried by the hood, partition walls carried by the ends of W. R. Morrnr'r, ARTHUR D. LEACH.

. rality of window openings, and transoms over 

